Migration of heavy metals from ceramics, glass, and enameled articles
ASTM C927-80, EN 1388-1, EN 1388-2, …
Migration of lead and cadmium from ceramics, glass, and enameled articles. For ceramic articles and tableware, limits defined in Commission Directive 2005/31/EC (amending Council Directive 84/500/EEC) apply: Category Limit for lead Limit for cadmium Articles which cannot be filled and articles which can be filled, the internal depth of which, measured from the lowest point to the horizontal plane passing through the upper rim, does not exceed 25 mm 0.8 mg/dm2 0.07 mg/dm2 All other articles which can be filled 4.0 mg/l 0.3 mg/l Cooking ware; packaging and storage vessels having a capacity of more than three liters 1.5 mg/l 0.1 mg/l In addition, limits for the release of lead (2 mg/article) and cadmium (0.2 mg/article) for articles with a lip and rim area (such as cups and mugs) have been defined in standard ISO 4531-1/2:1998. For glass and enameled products, no harmonized regulation exists currently within the European Union. By convention, limits defined by Commission Directive 2005/31/EC can be applied. However, member states can impose additional or separate restrictions regarding migration limits, tested elements, and/or test conditions. Examples of specific requirements defined at the national level are listed below: Member state Regulation Specific requirements* France Fiche MCDA n°2 (V01 – 01/05/2016) Ceramics & glass: separate migration limits for articles with a lip and rim area, migration limits for Al, Co, and As. Enameled and decorated articles other than ceramics: migration limit for Cr VI. Italy Ministerial Decree of 21/03/1975, as amended Lead glass: separate test method and migration limit for Pb. The Netherlands Commodities Act (Packagings and Consumer Articles) Glass and glass ceramics: separate migration limits for Sb, As, Ba, B, Cd, Ce, Cr, F, Co, Li, Pb, Mn, Ni, Rb, Zr. Ceramics and enamels: separate migration limits for As, Ba, B, Cd, Cr, Co, Hg, Li, Pb, Rb, Se, Sr. Finland Degree (KTM) 268/1992 Glass, enamels, and ceramics with lip and rim area and/or intended for toddlers: separate migration limits for Pb, Cd, Ni, Cr. * Testing for specific requirements is possible for an additional cost Some of the available test methods are listed below: Material type Product type Migration method Available methods Ceramics Flatware (e.g. plates) Total immersion EN 1388-1, ASTM C 738 Ceramics Holloware (e.g. cups) Article fill EN 1388-1, ASTM C 738 Glass Flatware (e.g. plates) Total immersion EN 1388-2 Glass Holloware (e.g. cups) Article fill ISO 7086-1 Ceramics, glass, enameled metal Holloware (e.g. cups) Lip and rim test ASTM C 927